TRAIN PROVIDED WITH COLLAPSIBLE INTERFACES BETWEEN THE CARRIAGES

摘要

A train (1) has a plurality of carriages (2) aligned along a longitudinal direction (3) and coupled to one another via interfaces (4), which are the same as one another and are provided with respective collapsible structures (18); each collapsible structure is plastically deformable when the interface (4) is subjected to a longitudinal compression higher than a given threshold (B) and has features such as to offer, during plastic deformation, a compressive strength substantially equal to that of a stiffness curve, which is set by design, increases in monotonic manner as a function of the longitudinal buckling, and has a downward concavity.